Figure 1From: Evaluation of extra capsular lymph node involvement in patients with extra-hepatic bile duct cancerA lymph node with intra-capsular tumor involvement embedded in perinodal fat tissue is shown on the left side (upper: low power field and lower: high power field). An adenocarcinoma extending through the capsule into the perinodal fat tissue is shown on the right (upper: low power field and lower: high power field).Back to article page